Davide Pedersoli S247

Appears to be roughly a 1:48 twist model. Should do well with shorter conicals such as Lee REAL or TC Maxi-Balls. Might do okay with sabots or the PowerBelt bullets they sold you, but that is not what it was designed to use. Round ball is also iffy with that twist.

This page has links to some information you should read, especially the first two. You should also have an owner's manual for your rifle. Be sure to study it.

Not to scold you at all as that is a nice looking traditional-type rifle, but you should have done some research before laying down the money. Next time, eh?

You should perhaps read the info you can find HERE and HERE.